Sam Antonacci

Active

Chicago White Sox · Outfielder

Age 235' 11" · 193 lbsBats Left

FBaseball Overview

The 23-year-old left fielder comes to the White Sox as an exciting young prospect who earned Post-Season All-Star honors in 2025, and his early MLB performance suggests he's ready to contribute in multiple categories. Through his debut season, he's flashing a strong .291 batting average with 43 runs and 11 stolen bases, demonstrating both contact skills and speed that should appeal to fantasy managers seeking multi-category contributions. While his power numbers remain modest at just four home runs, his elite batting average and speed profile position him as a high-upside option in deeper leagues and points-based formats. The primary risk is whether he can maintain this pace over a full season, but early returns suggest the White Sox may have a talented young bat capable of consistent production in runs, RBIs, and steals.

MLB Hitting

Year	Team	G	AVG	HR	RBI	R	SB	OBP	SLG	OPS
2026	Chicago White Sox	70	.284	5	25	46	11	.377	.412	.789
Career	Totals	70	.284	5	25	46	11	.377	.412	.789

Source: MLB Stats API · Multi-team seasons show combined totals — click to expand

Minor League Hitting

Year	Team	G	AVG	HR	RBI	R	SB	OBP	SLG	OPS
2024	Kannapolis Cannon Ballers	23	.333	0	14	22	7	.471	.432	.903
2025	3 teams▼	116	.291	5	57	78	48	.433	.409	.842
2026	Charlotte Knights	14	.313	2	7	6	5	.500	.479	.979
Career	Totals	153	.299	7	78	106	60	.445	.419	.864

Source: MLB Stats API · Multi-team seasons show combined totals — click to expand

Game Log2026 season

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Analytics2026 season · via Baseball Savant

Click for year to year changes

EV Avg87.8 mph

Max EV108.4 mph

Launch Angle11.6°

Barrel %6.9%

K %15.2%

Hard Hit %37.3%

Whiff %15.7%

Chase %22.3%

xBA0.296

xSLG0.436

xwOBA0.366

GB%48.8%

LD%25.1%

FB%22.7%

What These Stats Mean

EV Avg — Average exit velocity — how hard this batter hits the ball. Elite hitters (90+ mph) make consistently hard contact, driving better batting averages and more power.

Max EV — Peak exit velocity on the batter's hardest-hit ball this season. Signals raw power potential even without a high HR total yet.

Launch Angle — Average vertical angle of the ball off the bat. The sweet spot for extra-base hits is roughly 10–30°; extreme ground ball or pop-up hitters sit outside this range.

Barrel % — Percentage of batted balls hit with the optimal exit velocity + launch angle combo. Barrels are the single best predictor of home runs and slugging percentage.

K % — Strikeout rate per plate appearance. High K% suppresses batting average and limits run-scoring opportunities — lower is better for fantasy.

Hard Hit % — Percentage of batted balls hit 95 mph or harder. A broader power indicator than barrels; high hard-hit% players rack up extra-base hits and RBI.

Sprint Speed — Peak sprint speed in feet per second. The best predictor of stolen base upside and ability to leg out infield hits.

Whiff % — Percentage of swings that miss. High whiff rates signal strikeout vulnerability, dragging down batting average and overall production.

Chase % — How often the batter swings at pitches outside the strike zone. Low chase rates mean elite plate discipline — more walks, fewer strikeouts, more consistent at-bats.

xBA — Expected batting average based on contact quality, stripping out luck and defensive positioning. Better predictor of future performance than actual batting average.

xSLG — Expected slugging based on batted ball data. A high xSLG relative to actual SLG suggests power suppressed by bad luck that's likely to bounce back.

xwOBA — Expected weighted on-base average — the most comprehensive single expected metric. Combines contact quality, walks, and strikeouts to project overall offensive production.

GB% — Ground ball rate. High GB% hitters trade home run power for speed-dependent value — good for stolen base upside, but a drag on HR and SLG categories.

LD% — Line drive rate. High LD% hitters make consistent hard contact; line drives are the batted ball type most likely to fall for hits and boost batting average.

FB% — Fly ball rate. Elite power hitters combine high FB% with high exit velocity. High fly ball rate + soft contact = home run or nothing type.

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Year

Team

AVG

RBI

OBP

SLG

OPS

2026

Chicago White Sox

.284

.377

.412

.789

Career

Totals

.284

.377

.412

.789

Year

Team

AVG

RBI

OBP

SLG

OPS

2024

Kannapolis Cannon Ballers

.333

.471

.432

.903

2025

3 teams▼

116

.291

.433

.409

.842

2026

Charlotte Knights

.313

.500

.479

.979

Career

Totals

153

.299

106

.445

.419

.864